Type-writing machine.



G. J GRIFFITHS. TYPE WRITING MACHINE.

- j A APPLICATION FILED 1030.21, 1910.

1 Patented Jan. 23,1912.

, 2 SHEETS-SHEET 1.

.Jure/ZTQI G. J. GEIFFITHS.

TYPE WRITING MACHINE. APPLI U ATIOH FILED DBO. 21,1910.

Patented Jan 23, 1912.

2 SHEETS-SHEET 2.

sTATEs'rATENT- OFFICE.

'GEoneE J. eEIEEI'rns, 0F, woonsrocn n.L11vors, Assrenon To run oLIvEn. TYPE WRITER company, or CHICAGO, ILLINOIS, n conronn'rron or ILLINOIS.

mE-wmme Specification of Iie tters Patent.

Patented Jan. 23,1912.

Application filed December 21, 1910. Serial No. 588,530.

To all whom it may concern:

Be it known that I, GEORGE J. Gmrrrrns, a citizen of the United States, and a resident of Woodstock, in the county of 'McHenry' and State of Illinois; have invented certain new and useful Improvements in Type Writing Machines; and I do hereby declare that the following isa full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which such machines.

- form a part of this specificationdrmvings as" applied to an 1. Oliver Z type.- a

as that shown inthe-f P i r patent to H. Gross, No 837,611, granted Said improvements, 5

This invention relates to certain novel;

features of construction chines of the having a platen-shift mechanism by which the paper-carriage platen into position to receive an impression from either of three types carried by each of the type-f i of the paper-carriage and platen.

moved or shifted to bring the bars.

vention are illustrated Wr tmg machine such December 4th, 1906.-

type.

.inafter described and more pointed out in the appended clauns.v

v the .base of the machine which cons horizontal top-plate a; provided with adeep 4 In the crawlss view of a typewritin'g 2P2 of Fig. 1. Fig-3 is a mg a partial vertical'section thro [machine base in a line 3-3 of Fi 1-.

of construction of the maeli1ne,"*'

depending marglnal flange or. sidewall A .fija re the key-levers which are- -fliicatedbeig in typewriting ma'-;

The improvements shown and described herein and which constitute the present in-f in the accompanying g The invention consists. ofthe matters hereparticularly V g ,G,' G indicate 'the'shift-levers 'for'actuatig'ure'l is a top plan 'ingthe sniff-frame which are located atthe machine provldedi with the novel features constituting my in-' vention, the paper carria'ge being removed, Fig.2 represents a vertical section. through the machine in a plane indicated bycthe line-g view representj T h the? P n c e th? neath the top plate a, and extend from front -to rear of the machine. Said key-levers are pivoted at their rear ends to their rear part of saidbase, in a familiar manner. Said bars C of the ,form employed in said are mounted intwo groups located at oppo- Said type-bars O carry type-heads C each provided withthreetypes, as is common in E indicates the platen, which is mounted the paper-carriage'E, The type-bars C are mounted in supporting frames (1 which overhang the platen and carriage and are rigidlyattached .to Y supportingstandards 1D, I), attached at'their lower ends to the top .plate a of the base A and which are in front F indicates, as a whole, a shift frame which' is located vabove the top platenof the base and'on'whichthe p per-carriage is mounted. Said shift-frame is ca ableof a central position, so that-the platen mayfbe Said shifting-frame is provided with front which rest the rollers e}, e? ,ofthe carriageframe.

leftr hand side '"of'the niachlne f-v f l V H indicatesa" horizontal, transverse frockfrom said; shiftsleve v H w .;1 -'shaft rovidedwith i'ocated in'ii longitudinal median of m h and i n t d with 1; shift- 'means of v a.'connectipgz-bar H;

t tr a b r, Said rock-. ,ls provided beneath the hrock-arins'Hflu H", 95;

carrying a crank-pin k, adapted "to engage cam-sa rament -'=,Shown, are [Integral with and depend the'shift -levers G, G, respectivelv.

leversare operatively connected with type-' site sides of the center line of the machine.

movement backwardly and forwar 1y fromcrank-ai-InH which nlcam-plates .g, g which,

F Oliver typewriting machine and which I by means of which l. Y

' 0 the shift? 75 prcug t pnder' the-striking point of either however, may be applied to otherkinds of? of the three sets of onthe type-bars; typewriting machines. of thedouble shift! 7 I W f and rearhorizdntalfguide-bars F F on arranged.

G is a spring which acts on the shiftlever G to the same and which tends to retmn the shift-frame to its central positlon when shifted forwardly or rearwardly away from the same. :A similar spring (not shown) isprovided for the shift-lever G Referring now to the novel features of construction which constitute the means for supporting the shift-flame, and the suhjectmatter of the present invention, said features are as follows? Said shift-frame provided in front of the guide-bar I? and at its opposite ends with rigid, depending arms F F which extend downwardly from the. ends of the shift-flame through openings formed in the top-wall a, and near the up right side-walls A of the base-plate of the machine. As shown in the drawings, said arms F F are made separately from the main art of the shift-frame and are rigidly connected thereto by means of screws 1.

Said arms are suspended from the top plate a of the base A by means of or hangers K, K which are connected at their upper ends by transverse pivot-screws k, k to longitudinally extending plates L, L rigidly secured to said top wall of the base, and at I their lower ends are connectedby transverse Tpivot screws 152 ,717 to the lower ends of the arms F F. A spacing washer 1: is prefer; ably located on each of the screws 1: to space the hanger K from the associated arm The links or K, K thus support the forward end of the shift-frame in such manner as to permit a forward and.

backward movement of the same human in termediate central position by theswinging of'the lower ends of said links forwardly and backwardly from a central vertical posiing provided with a supporting roller, J on which said stem rests and moves in the shifting movement of the frame As in the ma- A chine referred'to, the forward and rearward and adapted for contact with a standard J said standard being mounted on the base;

frame will have the same rising end-falling movement of the shift-frame is limited in the present case bymeans of'stop-nuts f, f on the stem F arranged at opposite sides of,

plate of the machine and being provided with a notch through which said-stem F freely passes.

u .It is apparent that in the improvedconstruction, the forward part of? the shift movement as it is shifted toward and from the printing positions in front of and to the rear of the intermediate, central printing position, as in the-case of the machine .described in the application referred to, and the present construction has the important advantage mentioned therein of facilitating theprompt return of the shift-frame, car

riage, platen, and other parts supportedor carried by the shi:ftframe to central or lower case printing position, since the weight of the parts which are moved in effecting the shiit, serve to aid in the return thereof to said central position.

In the improved constructiondescribed, the supporting links or hangers for theshiftflame, as well as the depending. arms on said shift-flame extend downwardly through holes in the top plate a. of-thehollow base, so

and protected thereby from Moreover, the construction descrihed'provides in connection with a hollow base of the kind shown, means for supporting the shift-flame that they are contained within said base,

by parts which, while they are located with-.

m and occupy otherwise unutilized parts of the space the base, have connection only with the shift-frame andthe top-plate of the base, thereby afiording a very simple construction in the parts, and at the same time one in which the supporting means are located within and protected'by the base.

I claim as my invention y 1. In a typewriting machine, the combina tion. with a hollow, machine base consisting of a horizontal top wall and a marginal side wall, of a paper-carriage, a shift-frame on.

which the paper-carriagehas endwise move ment for letter-spacingand which is located above the machinebase and movable thereon to bring the paper into either one of a plurahty of prmtmgpositions, arms located at the opposlte ends of the shift-frame, said arms being rigid with theshift-frame and depending through holes in said top wall into the interior of the hollow machine base,

. and suspension links or hangers pivoted at theirlower ends to the lower ends of said depending arms and pivotally connected at their upper ends with the said machinebase at or near the top'of the same.

2, In a-ty'pewriting machine, the combination with a hollow machine base consisting of a horizontal top wall and a marginal side wall, of a paper-carriage, a shift-frame 'on which the paper-carriage has endwise movement for letter-spacing and which is located above the machine base and movable thereon to bring the paper into either one of a p111- rallty of prmtmg positions, arms located at the-opposite ends of, the shift-frame, said arms being rigid with the shift-frame and depend ng through holesgin the said. top

wall into the interior of. the hollow machine vase, supporting plates attached to the said presence of two witnesses, this 16th day of top Wall of the b31585 and suspension links or December A. D. 1910. 1

hangers pivoted at their lower ends to the I I i lower ends of said depending arms and at GEORGE 5 their upper ends to said supporting plates. Witnesses In testimony, that I, claim the foregoing B. O. YOUNG,

as my invention I aflix my signature in the A. J. 

